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Press release #Mobility Aftermarket
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Powerful new Bosch HCR 100 high-current relay delivers up to 100 amps of rated switching current

Robust high-current relay for 12- and 24-volt vehicle electrical systems in cars, commercial vehicles, and agricultural machinery

  • Reliable control of electrical systems and components in mobile and stationary applications
  • 12- and 24-volt versions cover the broad mass of current and future applications worldwide
  • High-quality materials make relay heat-, moisture-, and vibration-resistant, as well as dust-tight according to IP54
Carolin Lüdecke

Carolin Lüdecke

X

Carolin Lüdecke

Carolin Lüdecke
Spokesperson Mobility Aftermarket

Karlsruhe, Germany – Nowadays, the control of many electrical vehicle systems requires high currents. To meet this need, Bosch has developed the HCR 100 high-current relay, a power relay with a rated switching current of 100 amps. The new high-current relay ensures reliable control of the latest electrical vehicle systems and components, which require higher switching currents. Previous power relays were designed to switch currents up to 75 amps. Typical applications for more powerful high-current relays include the control of engine management, glow plugs, pre-heating systems, loading ramps, and start-stop systems as well as the heated vehicle windshield. The new relay can be used in many types of vehicles, including light and heavy trucks, agricultural machinery, buses, and campers, as well as in boats and stationary applications.

Durable and robust for use in a wide range of temperatures

The HCR 100 features minimal contact resistance and a continuous current limitation of 100 amperes at 85°C. This new relay is available in a 12- and a 24-volt version and covers existing applications worldwide. With the portfolio being continuously expanded to meet market requirements, the new high-current relay will also be suitable for use in future applications. Bosch power relays are resistant to heat, moisture, and vibration, and they are dust-tight in accordance with the IP54 test standard. They are durable and robust thanks to the use of high-quality materials, high corrosion protection, and careful workmanship. Designed for use in ambient temperatures from -40°C to +85°C, the relays have an electrical life of up to 100,000 switching cycles.

Readers’ contact:
Robert Bosch GmbH
Mobility Aftermarket
Phone: +49 9001 942 010
E-mail: Kundenberatung.Kfz-Technik@de.bosch.com

Contact person for press inquiries:
Carolin Lüdecke,
Phone: +49 721 942 3417
E-mail: Carolin.Luedecke@bosch.com

The Mobility Aftermarket division (MA) provides the aftermarket and repair shops worldwide with modern diagnostic and repair shop equipment and a wide range of spare parts – from new and exchange parts to repair solutions – for passenger cars and commercial vehicles. Its product portfolio includes products made as Bosch original equipment, products developed in-house and specifically manufactured for the aftermarket, as well as services. About 16,000 associates, as well as a global logistics network, ensure that spare parts reach customers quickly and on time. MA supplies testing and repair-shop technology, diagnostic software, service training, and information services. In addition, the division is responsible for the “Bosch Service” repair-shop franchise, one of the world’s largest independent chains of repair-shops, with some 13,000 workshops, and more than 1,000 “AutoCrew” partners in over 100 countries. In addition, with Bosch Classic, MA supports owners of classic cars with a wide range of spare parts and services.

Additional information can be accessed at www.boschaftermarket.com

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

Additional information is available online at www.bosch.com, www.iot.bosch.com, www.bosch-press.com.

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